CN211292335U

CN211292335U - Flexible line way board substrate tensile test tool

Info

Publication number: CN211292335U
Application number: CN201921754240.5U
Authority: CN
Inventors: 张亚勇; 计春松; 陈权; 朱文强
Original assignee: Suzhou Jingyou Electronic Technology Co ltd
Current assignee: Suzhou Jingyou Electronic Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-08-18
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a flexible circuit board substrate tension test fixture, which comprises a fixing component and a lifting component; the fixing assembly comprises a base, a fixing block, a pressing block, a fastener and a first connecting block, the fixing block is fixed on the base, the pressing block is fixed on the fixing block by the fastener, and the first connecting block is located below the base and fixed with the base; the lifting assembly comprises a pull ring and a second connecting block which are integrally connected. Flexible line way board substrate tension test tool, easy operation, the centre gripping is reliable, the atress is even, can reduce test error, improves test stability.

Description

Flexible line way board substrate tensile test tool

Technical Field

The utility model belongs to the tensile test equipment field, more specifically say, relate to a flexible line way board substrate tensile test tool.

Background

A Flexible Printed Circuit (FPC) is a printed circuit board made of a flexible insulating base material, mainly including polyimide, polyester film, and the like, and has many advantages that a rigid printed circuit board does not have. For example, the flexible circuit board can be freely bent, rolled and folded, so that the volume of the electronic product can be greatly reduced to meet the requirements of the electronic product on the development of high density, miniaturization and high reliability. At present, the FPC is widely applied to the fields of aerospace, military, mobile communication, portable computers, computer peripherals, digital cameras and the like.

Flexible circuit boards also have some disadvantages relative to rigid printed circuit boards. For example, flexible circuit boards are still lacking in mechanical strength, resulting in insufficient stability and durability. In order to ensure that the produced flexible circuit board product can meet the application requirements of customers, various performance tests including a tensile test must be carried out on the flexible circuit board. However, most of the existing tension test jigs are general tension test jigs, and the flexible circuit board is difficult to clamp, or the problems of large test error and poor stability caused by uneven stress are easily caused in the clamping process.

Disclosure of Invention

Not enough to prior art exists, the utility model provides a flexible line way board substrate tension test tool, this flexible line way board substrate tension test tool, easy operation, the centre gripping is reliable, can reduce test error, improves test stability.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a tensile test fixture for a flexible circuit board substrate comprises a fixing component and a lifting component; the fixing assembly comprises a base, a fixing block, a pressing block, a fastener and a first connecting block, the fixing block is fixed on the base, the pressing block is fixed on the fixing block by the fastener, and the first connecting block is located below the base and fixed with the base; the lifting assembly comprises a pull ring and a second connecting block which are integrally connected.

The flexible circuit board substrate tension test fixture is simple to operate in the test process and accurate and reliable in result. The first connecting block and the second connecting block are connected with two ends of the tension tester, the flexible circuit board substrate penetrates through the pull ring, is tightly pressed and fixed between the fixing block and the pressing block, and is locked by the fastener. The pull ring is slowly pulled upwards by the pull tester, and the measured pull value can be directly read on the pull tester.

Preferably, above-mentioned flexible line way board substrate tension test tool, the fastener includes a set of bolt and a set of nut, and the bolt is worn to locate in the briquetting, and the one end of bolt is fixed in on the fixed block, and the other pot head of bolt is equipped with the nut, and the briquetting is fixed on the fixed block to bolt and nut. The bolt and the nut are adopted for connection, so that the connection is reliable and the operation is simple.

Preferably, in the tensile test fixture for the substrate of the flexible circuit board, the fixing block is stepped and comprises a first step and a second step, and the pressing block is fixed on the first step and is abutted against the second step. The pressing block is leaned against the side face of the second step, so that the position of the pressing block fixed each time is kept consistent, and the measurement error caused by the tiny displacement of the pressing block in the tension test is avoided

As an improvement of the utility model, foretell flexible printed circuit board substrate tension test fixture, the lower surface of briquetting is equipped with the convex part, and the upper surface of first step is equipped with first concave part, and the same and position of the shape of convex part and first concave part is corresponding. The convex part and the first concave part can improve the clamping reliability, and prevent the flexible circuit board base material from being damaged due to too concentrated pressure, so that the test value is distorted.

As an improvement of the utility model, foretell flexible line way board substrate tension test fixture, the side of briquetting still is equipped with the second concave part, and the second concave part is adjacent with the convex part position. The second concave part is arranged, so that the flexible circuit board base material can be prevented from being damaged due to overlarge bending angle in the test process, and the test value distortion is prevented.

Preferably, in the above fixture for testing the substrate tension of the flexible circuit board, an included angle between the convex portion and the lower surface of the press block is 18 °, and an included angle between the second concave portion and the side surface of the press block is 45 °.

As an improvement of the utility model, foretell flexible line way board substrate tension test fixture, the pull ring base is equipped with to the bellied protruding edge in the intra-annular. The convex edge is arranged to enable the stress to be more uniform, the flexible circuit board base material is prevented from being damaged due to the fact that the bending angle is too large in the testing process, and the testing value is prevented from being distorted.

Preferably, the convex edge of the flexible circuit board substrate tension test fixture is in a semi-circular arc shape.

As an improvement of the present invention, in the above-mentioned flexible printed circuit board substrate tension test fixture, the first connecting block is provided with at least one first through hole, and the first through hole penetrates through the first connecting block; and at least one second through hole is formed in the second connecting block and penetrates through the second connecting block. The first through hole and the second through hole are arranged, so that the bolt can penetrate through the first through hole and the second through hole, the fixing component and the lifting component are respectively connected with two ends of the tension tester in a fastening mode, and the connection reliability is improved.

As an improvement of the present invention, the fixing assembly of the flexible circuit board substrate tension testing jig further comprises a first leaning block, wherein the first leaning block is fixed at the lower end of the base and leans against one side of the first connecting block vertically; the lifting assembly further comprises a second leaning block, and the second leaning block is fixed on the upper portion of the lifting ring and vertically leans against one side of the second connecting block. Add first by the piece and the second by the piece, make fixed subassembly and carry and draw the subassembly to be connected with the tensile tester more stable, avoid appearing rocking the shake when the test, improve the accuracy and the stability of test.

Has the advantages that: compared with the prior art, flexible line way board substrate pulling force test fixture, easy operation, the centre gripping is reliable, the atress is even, can reduce test error, improves test stability.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram of the structure explosion of the present invention.

Fig. 3 is a partially enlarged schematic view of the fixing assembly of the present invention.

In the figure, 1 is a fixing component, 2 is a lifting component, 11 is a base, 12 is a fixing block, 13 is a pressing block, 14 is a fastener, 15 is a first connecting block, 16 is a first leaning block, 21 is a pull ring, 22 is a second connecting block, 23 is a second leaning block, 121 is a first step, 122 is a second step, 131 is a convex part, 132 is a second concave part, 141 is a bolt, 142 is a nut, 151 is a first through hole, 211 is a convex edge, 221 is a second through hole, and 1211 is a first concave part.

Detailed Description

The invention is further explained by combining the attached drawings and the specific embodiments.

Example 1

A flexible circuit board substrate tension test fixture is shown in figures 1 and 2 and comprises a fixing component 1 and a lifting component 2; the fixing component 1 comprises a base 11, a fixing block 12, a pressing block 13, a fastener 14 and a first connecting block 15, wherein the fixing block 12 is fixed on the base 11, the pressing block 13 is fixed on the fixing block 12 by the fastener 14, and the first connecting block 15 is positioned below the base 11 and fixed with the base 11; the lifting assembly 2 comprises a pull ring 21 and a second connecting block 22, and the pull ring 21 and the second connecting block 22 are integrally connected.

During testing, the first connecting block 15 and the second connecting block 22 are connected with two ends of a tension tester, the flexible circuit board substrate penetrates through the pull ring 21, is tightly pressed and fixed between the fixed block 12 and the pressing block 13, and is locked by the fastener 14. The pull ring 21 is slowly pulled upwards by the tension tester, and the measured tension value can be directly read on the tension tester.

Example 2

A flexible circuit board substrate tension test fixture is shown in figures 1 and 2 and comprises a fixing component 1 and a lifting component 2; the fixing component 1 comprises a base 11, a fixing block 12, a pressing block 13, a fastener 14 and a first connecting block 15, wherein the fixing block 12 is fixed on the base 11, the pressing block 13 is fixed on the fixing block 12 by the fastener 14, and the first connecting block 15 is positioned below the base 11 and fixed with the base 11; the lifting assembly 2 comprises a pull ring 21 and a second connecting block 22, and the pull ring 21 and the second connecting block 22 are integrally connected. The fastening member 14 includes a set of bolts 141 and a set of nuts 142, the bolts 141 are inserted into the pressure block 13, one end of each bolt 141 is fixed to the fixed block 12, the other end of each bolt 141 is fitted with the nut 142, and the bolts 141 and the nuts 142 fix the pressure block 13 to the fixed block 12. Moreover, the first connecting block 15 is provided with a first through hole 151, and the first through hole 151 penetrates through the first connecting block 15; the second connecting block 22 is provided with a second through hole 221, and the second through hole 221 penetrates through the second connecting block 22. Moreover, the fixing component 1 further comprises a first leaning block 16, wherein the first leaning block 16 is fixed at the lower end of the base 12 and leans against one side of the first connecting block 15 vertically; the pulling assembly 2 further comprises a second rest block 23, and the second rest block 23 is fixed on the upper part of the pulling ring 21 and vertically leans against one side of the second connecting block 22.

During testing, the first connecting block 15 and the second connecting block 22 are connected with two ends of a tension tester, the flexible circuit board substrate penetrates through the pull ring 21, is tightly pressed and fixed between the fixed block 12 and the pressing block 13, and is locked by the bolt 141 and the nut 142. The pull ring 21 is slowly pulled upwards by the tension tester, and the measured tension value can be directly read on the tension tester.

Example 3

A flexible circuit board substrate tension test fixture is shown in figures 1 to 3 and comprises a fixing component 1 and a lifting component 2; the fixing component 1 comprises a base 11, a fixing block 12, a pressing block 13, a fastener 14 and a first connecting block 15, wherein the fixing block 12 is fixed on the base 11, the pressing block 13 is fixed on the fixing block 12 by the fastener 14, and the first connecting block 15 is positioned below the base 11 and fixed with the base 11; the lifting assembly 2 comprises a pull ring 21 and a second connecting block 22, and the pull ring 21 and the second connecting block 22 are integrally connected. The fastening member 14 includes two bolts 141 and two nuts 142, the bolt 141 is inserted into the pressing block 13, one end of the bolt 141 is fixed to the fixing block 12, the other end of the bolt 141 is fitted with the nut 142, and the pressing block 13 is fixed to the fixing block 12 by the bolt 141 and the nut 142. The fixing block 12 is stepped and includes a first step 121 and a second step 122, and the pressing block 13 is fixed on the first step 121 and abuts against the second step 122. The lower surface of the pressing block 13 is provided with a convex portion 131, the upper surface of the first step 121 is provided with a first concave portion 1211, and the convex portion 131 and the first concave portion 1211 have the same shape and are correspondingly positioned. The side surface of the pressure piece 13 is further provided with a second concave portion 132, and the second concave portion 132 is positioned adjacent to the convex portion 131. The angle between the convex portion 131 and the lower surface of the compact 13 is 18 °, and the angle between the second concave portion 132 and the side surface of the compact 13 is 45 °. And, the bottom edge of the pull ring 21 is provided with a convex edge 211 which is convex towards the ring. The convex edge 211 is a semicircular arc. Moreover, the first connecting block 15 is provided with a first through hole 151, and the first through hole 151 penetrates through the first connecting block 15; the second connecting block 22 is provided with a second through hole 221, and the second through hole 221 penetrates through the second connecting block 22. Moreover, the fixing component 1 further comprises a first leaning block 16, wherein the first leaning block 16 is fixed at the lower end of the base 12 and leans against one side of the first connecting block 15 vertically; the pulling assembly 2 further comprises a second rest block 23, and the second rest block 23 is fixed on the upper part of the pulling ring 21 and vertically leans against one side of the second connecting block 22.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a flexible line way board substrate tensile test tool which characterized in that: comprises a fixed component (1) and a lifting component (2); the fixing assembly (1) comprises a base (11), a fixing block (12), a pressing block (13), a fastener (14) and a first connecting block (15), the fixing block (12) is fixed on the base (11), the pressing block (13) is fixed on the fixing block (12) by the fastener (14), and the first connecting block (15) is located below the base (11) and fixed with the base (11); the lifting assembly (2) comprises a pull ring (21) and a second connecting block (22), and the pull ring (21) and the second connecting block (22) are integrally connected.

2. The flexible circuit board substrate tension test fixture of claim 1, characterized in that: the fastener (14) comprises a group of bolts (141) and a group of nuts (142), the bolts (141) penetrate through the pressing block (13), one ends of the bolts (141) are fixed on the fixing block (12), the nuts (142) are sleeved on the other ends of the bolts (141), and the bolts (141) and the nuts (142) fix the pressing block (13) on the fixing block (12).

3. The flexible circuit board substrate tension test fixture of claim 1, characterized in that: the fixing block (12) is in a step shape and comprises a first step (121) and a second step (122), and the pressing block (13) is fixed on the first step (121) and is abutted to the second step (122).

4. The flexible circuit board substrate tension test fixture of claim 3, characterized in that: a convex part (131) is arranged on the lower surface of the pressing block (13), a first concave part (1211) is arranged on the upper surface of the first step (121), and the convex part (131) and the first concave part (1211) are identical in shape and correspond in position.

5. The flexible circuit board substrate tension test fixture of claim 4, characterized in that: the side surface of the pressing block (13) is also provided with a second concave part (132), and the second concave part (132) is adjacent to the convex part (131).

6. The flexible circuit board substrate tension test fixture of claim 5, characterized in that: the included angle between the convex part (131) and the lower surface of the pressing block (13) is 18 degrees, and the included angle between the second concave part (132) and the side surface of the pressing block (13) is 45 degrees.

7. The flexible circuit board substrate tension test fixture of any one of claims 1 to 6, wherein: the bottom edge of the pull ring (21) is provided with a convex edge (211) protruding towards the inside of the pull ring.

8. The flexible circuit board substrate tension test fixture of claim 7, wherein: the convex edge (211) is in a semi-circular arc shape.

9. The flexible circuit board substrate tension test fixture of claim 7, wherein: at least one first through hole (151) is formed in the first connecting block (15), and the first through hole (151) penetrates through the first connecting block (15); at least one second through hole (221) is formed in the second connecting block (22), and the second through hole (221) penetrates through the second connecting block (22).

10. The flexible circuit board substrate tension test fixture of claim 7, wherein: the fixing component (1) further comprises a first leaning block (16), wherein the first leaning block (16) is fixed at the lower end of the base (11) and vertically leans against one side of the first connecting block (15); the lifting assembly (2) further comprises a second leaning block (23), and the second leaning block (23) is fixed on the upper portion of the pull ring (21) and vertically leans against one side of the second connecting block (22).